Chronology for Fluctuations in Late Pleistocene Sierra Nevada Glaciers and Lakes

Abstract

Mountain glaciers, because of their small size, are usually close to equilibrium with the local climate and thus should provide a test of whether temperature oscillations in Greenland late in the last glacial period are part of global-scale climate variability or are restricted to the North Atlantic region. Correlation of cosmogenic chlorine-36 dates on Sierra Nevada moraines with a continuous radiocarbon-dated sediment record from nearby Owens Lake shows that Sierra Nevada glacial advances were associated with Heinrich events 5, 3, 2, and 1.

Timing of Late Quaternary glaciation along the southwestern slopes of the Qilian Shan, Tibet

“…Similarly, the work by Phillips et al (1996) on the Late Pleistocene glacial chronologies in the Sierra Nevada illustrates the large spread of CRN surface exposure ages that are produced for individual moraines. In this study, CRN 36 Cl was used to date a succession of moraines in several valleys.…”

A new strategy for analyzing the chronometry of constructed rock features in deserts

“…(p. 197) Most of the original calibration of VML research took place in the southwestern Great Basin, including a large number of calibration sites in and around our study area. Furthermore, the distinctive wet climatic events responsible for the discrete black layers in varnish produced glacial pulses in the nearby Sierra Nevada (Phillips et al, 1996). Although ongoing research is now attempting to identify discrete Holocene laminae (cf.…”

“…(Bischoff and Cummings, 2001) and perhaps briefly again about 10,500 14 C yr B.P. (Smith et al, 1983;Smith and Bischoff, 1993), Searles Lake reached its sill at times that roughly correspond with Heinrich Events in the North Atlantic (Phillips et al, 1996).…”

“…This rock cairn occurs close to a locality known as Christmas Ridge, where a projectile-point base was found embedded in desert pavement (Figure 3). The timing of these lakes corresponds with glacial advances in the Sierra Nevada (Bischoff and Cummings, 2001) during Heinrich events (Phillips et al, 1996). The small box on the southeast side of Searles Valley indicates the location of the Christmas Canyon field site.…”

Geomorphological applications of cosmogenic isotope analysis

“…Ice-marginal moraines: glacial history; climatic change. Brown et al (1991), Brook et al ( , 1995a, , Gosse et al (1995a, b), Phillips et al (1990Phillips et al ( , 1996Phillips et al ( , 1997, Zreda and Phillips (1995), Ivy-Ochs et al (1996), Fabel et al (1997, Jackson et al (1997Jackson et al ( , 1999, Chadwick et al (1997), Steig et al (1998), Davis et al (1999), Fabel andHarbor (1999), Gualtieri et al (2000), Shanahan and Zreda (2000), Tschudi et al (2000), Marsella et al (2000), Phillips et al (2000) Barrows et al (2001Barrows et al ( , 2002, Briner et al (2001;, Licciardi et al (2001), Owen et al (2001Owen et al ( , 2002a, Kaplan et al …”